Car-axle-box lid.



F. HAGHMANN. CAR AXLE BOX LID. APPLICATION FILED JAN. 29, 1908 Patented Jan. 26, 1909.

illustrate the invention,

; skilled in the art to which it UNITED STATES PATENT onurcn.

FREDERICK HACHMANN, OF ST. PAUL, MIN NESOTA, ASSIGNOR OF SEVEN-EIGHTHS TO WAL- TEE W. WHITMAN, OF ST. PAUL, MINNESOTA AND ONE-SIXTEENTH TO PATRICK H. SCAN- LAN, BUTTE, MONTANA.

GAR-AXLE-BOX LID.

Specification of Letters Patent.

Patented Jan. 26, 1909.

Application filed January 29, 1908. Serial No. 413,291.

To all whom it may concern:

Be it known that I, FREDERICK HAOH- MANN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State ofMinnesota, have invented certain new and useful Improvements Car-Axle- Box Lids; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others app'ertains' to make and use the same. I

My resentinventionlha's for its object to provid g an improved car axle box' lid, and to this .end, it consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanyin drawings, -which catelike parts throu hout the; aeveral views.

Referring to the drawings Figure 1 is, a view in front elevation showing ;a car axle box equipped with my improved lid. Fi 2 is a side e evation of the parts shown in Fig. 1, some parts bein broken away. Fig. 3 is a vertical section ta en on the line at x of Fig.

1, some parts being broken away; and Fig. 4

is a detail in section on the line x 0: of Fig. 1. The car axle box 1 may be of any suitable construction, but is preferably formed with.

an annular lid seat 2. Above the lid seat 2, the box is rovided with a pair of heavy hinge lu 3 pre erably cast inte al with the box. A in e bolt -4is extended ti keye .or otherwise secured to t e said h' lugs 3. On the outer'face of the box and at diametrically opposite sides of the lid seat 2 are lock lugs 5 also preferably cast integral with the box. These look lugs 5 are formed with under-cut. lock seats 6, both of which are open on their inner sides. The lock seat 6 of one of the lugs 5, to-wit, as shown, the right hand lug (see Fig. 1), extends u ward and is 0 on at the to of the lug, WhJ e the seat 6 o the left hand ing extends downward and is open at the bottom of the lug. At their open ends, the seats 6 are preferably formed with beveled lock shoulders 6*, as

. 2, 18 provided with a to permit the-lid 7 always to tightly seat at- .ike characters indi-- arrows marked thereon in Fig. 1.

rouglh and rigidly all points against the annular seat The seats 8 of the lid lugs 8 are provided with radial notches 8 that are adapted to engage with lug flanges .of the non-rotary lnnge bolt 4 to hold the lid in an openposition.

An oscillatory lock bar 9 is intermediately pivoted to the central portion of the lid 7, as

shown, by means of a nutted bolt 10. The

central portion of this lock bar 9 is preferably.

made in the form of a round spring housing 9* that is open at its inner face or adjacent to the lid 7. Within. the spirng housing 9 -is a multiplicity of coiled springs 11 shown as roperly spaced on the outer face of the lid 7, ii means of bosses 12 cast on the said lid. T ese sprin s 11 exert a force which tends to throw the oak bar laterally outward and away from the lid, as far as permitted by the bolt 10. A torsion spring 13 which surrounds the bolt 10, and is attached at one end to the lid 7 and-at its other end to the s ring housin 9, exerts a force which ten s to move 51c lock bar 9 in the direction of the On the outer face of the lid 7 are segmental flanges v14; that overlap the upper and lower por- .tions of the rim of the spring housing 9 and ,act as sand-guards to keep sand and dirt out of the said spring housing.

The operation of the lid locking device is as follows: The lid may be turned into a closed position when the lock bar 9 is moved I approximately into the position indicated by dotted lines in Mg. 1, 1n which position its ends will clear the lock lugs 5. When the lid has been thus closed and the lock bars released, the latter will, by the torsion spring 13, be moved into interlocking engagement with the lock lugs 5. More particularly stated, by a movement of the lock bar 9 from the position indicated by dotted lines into the position indicated by full lines, its free ends are forced into the lock seats 6 of'the said lugs 5 and'past the lock shoulders 6 as best shown in liig. 4. The torsion spring 13 in itself would probably be sufficient to prevent ac'cidental separation of the ends of the lock bar 9 from the lock lugs 5, but the lock shoulders 6 serve to positively prevent such accidental separation.

To 0 en the lid, it is only necessary tofirst press t e lock bar 9 sh tly inward so that it will clear the lock shou ders 6, and then to turn the same backward into its dottedline position shown in Fig. 1. When the lid is lateral motion of the lock bar, in respect to the lid, is required in order to put the s rings 11 under tension when the lid is locke in its closed position by the bar.

Theim proved device, above described, may

be constructed at small cost, and," furthermore, is eiificient for the purposes had in view. What I claim is:- 1. The combination with a box and a lid hinged thereto, of a lock bar intermediately pivoted to the outer side of said lid and havmg a limited lateral.movement in respect thereto, yielding means tending to force said bar laterally away from said lid and to impart rotary movement thereto in one direction, and the exterior of the box having lock lugs, with which the ends of said lock bar are engageable and disengageable by oscillatory movement, substantially as described.

2. The combination with a box and a lid hinged thereto, of a lock bar having a spring housing at its intermediate portion, a bolt intermediately pivoting said ock bar to the housing at its intermediate central ortion of said lid and permitting a limited ateral movement thereof inrespect to the lid, springs interposed between said lid and the spring housing of said lock bar, the said s rings tending to move said lock bar latera ly away from the said lid and to impart rotary movement thereto in one direction, and the exterior of the box having lock lugs with reversely extended seats with which the ends of said lock bar are engageable and disenga eable by oscillatory movement, substantia ly as described.

3. The combination'with a box and a lid hinged thereto, of a lock bar having a spring ortion, a bolt intermediately pivoting said ock bar to said lid and'permitting a limited lateral movementv thereto in respect to the lid, springs interposed between said lid and the housing ofsa1d lock bar, said springs exertin a force tendingto movesaidlock bar latera ly away from said lid and to impart rotary movement thereto in one direction, and the exterior of the box having lock lugs providediwith seats 6 and beveled shoulders 6 with which the i ends of said lock bar are engageableand disengageable by oscillatory movement, sub stantially as described.

In testimony whereof I, affix my signature in presence of two witnesses.

- FREDERICK HAOHMANN. Witnesses:

MALIE HoEL, H. D.KILG RE. 

